Ecology and Climate Change – Transatlantic Euro-American Multimediahttp://teamultimedia.com
Books on politics, international affairs, defense and military topics, economics and history.
Wed, 27 Feb 2019 01:24:43 +0000 en-US
hourly
1 https://wordpress.org/?v=5.1.1Changes in the Arctic: Background and Issues for Congresshttp://teamultimedia.com/changes-in-the-arctic-background-and-issues-for-congress
Sat, 16 Feb 2019 02:40:18 +0000http://teamultimedia.com/?p=1062Continue Reading Changes in the Arctic: Background and Issues for Congress]]>The diminishment of Arctic sea ice has led to increased human activities in the Arctic, and has heightened interest in, and concerns about, the region’s future. The United States, by virtue of Alaska, is an Arctic country and has substantial interests in the region. Record low extents of Arctic sea ice over the past decade have focused scientific and policy attention on links to global climate change and projected ice-free seasons in the Arctic within decades.

These changes have potential consequences for weather in the United States, access to mineral and biological resources in the Arctic, the economies and cultures of peoples in the region, and national security. The five Arctic coastal states—the United States, Canada, Russia, Norway, and Denmark (of which Greenland is a territory)—have made or are in the process of preparing submissions to the Commission on the Limits of the Continental Shelf regarding the outer limits of their extended continental shelves. The Russian submission includes the underwater Lomonosov Ridge, a feature that spans a considerable distance across the center of the Arctic Ocean.

The diminishment of Arctic ice could lead in coming years to increased commercial shipping on two trans-Arctic sea routes—the Northern Sea Route close to Russia, and the Northwest Passage—though the rate of increase in the use of these routes might not be as great as sometimes anticipated in press accounts. International guidelines for ships operating in Arctic waters have been recently updated. Changes to the Arctic brought about by warming temperatures will likely allow more exploration for oil, gas, and minerals. Warming that causes permafrost to melt could pose challenges to onshore exploration activities. Increased oil and gas exploration and tourism (cruise ships) in the Arctic increase the risk of pollution in the region. Cleaning up oil spills in ice-covered waters will be more difficult than in other areas, primarily because effective strategies for cleaning up oil spills in ice-covered waters have yet to be developed. Large commercial fisheries exist in the Arctic. The United States is currently meeting with other countries regarding the management of Arctic fish stocks. Changes in the Arctic could affect threatened and endangered species, and could result in migration of fish stocks to new waters. Under the Endangered Species Act, the polar bear was listed as threatened on May 15, 2008.

Arctic climate change is also expected to affect the economies, health, and cultures of Arctic indigenous peoples. Two of the Coast Guard’s three polar icebreakers—Polar Star and Polar Sea—have exceeded their intended 30-year service lives, and Polar Sea is not operational. The Coast Guard has initiated a project to build up to three new heavy polar icebreakers. On May 12, 2011, representatives from the member states of the Arctic Council signed an agreement on cooperation on search and rescue in the Arctic. Although there is significant international cooperation on Arctic issues, the Arctic is increasingly being viewed by some observers as a potential emerging security issue. Some of the Arctic coastal states, particularly Russia, have announced an intention or taken actions to enhance their military presences in the high north. U.S. military forces, particularly the Navy and Coast Guard, have begun to pay more attention to the region in their planning and operations.

]]>Report on Effects of a Changing Climate to the Department of Defense Paperbackhttp://teamultimedia.com/report-on-effects-of-a-changing-climate-to-the-department-of-defense-paperback
Sun, 27 Jan 2019 03:28:01 +0000http://teamultimedia.com/?p=1007

This report assesses the impact and risks of climate change to United States military installations, conduct of military operations, and mission effectiveness.

Since the start of the 21st century, the U.S. energy system has seen tremendous changes. Technological advances in energy production have driven changes in energy consumption, and the United States has moved from being a growing net importer of most forms of energy to a declining importer—and possibly a net exporter in the near future.

The United States remains the second largest producer and consumer of energy in the world, behind China. The U.S. oil and natural gas industry has gone through a “renaissance” of production. Technological improvements in hydraulic fracturing and horizontal drilling have unlocked enormous oil and natural gas resources from unconventional formations, such as shale. Oil has surpassed levels of production not seen since the 1970s. Natural gas has set new production records almost every year since 2000. In conjunction with the rise in oil and natural gas production, U.S. production of natural gas liquids has also increased. The rise in production of these fuel sources has also corresponded with increased consumption and exports of each. The rise in U.S. oil and natural gas production has taken place mostly onshore and on nonfederal lands. Crude oil production from nonfederal land has doubled over the past decade. While production on federal land has increased, it has not grown as fast as oil production on nonfederal land, causing the federal land share of total U.S. crude oil production to fall from its peak of nearly 36% in 2009 to about 24% in 2017. U.S. natural gas production shifted even more dramatically, with total U.S. dry production growing 33% since 2008, while gross withdrawals on federal lands declined by almost 32% over the same time period. The federal land share of total gross withdrawals decreased from 25% in 2008 to 13% in 2017.

The electric power industry is transforming. Growth in demand for electricity has essentially been flat for many years, and the amount of new power generation capacity needed has declined each year in many parts of the country. The projections for future demand growth in most regions of the United States are declining. Natural gas edged out coal to become the primary electric generation fuel in 2016 and the growth in wind and solar energy has shown little sign of abating. The electricity infrastructure of the United States is aging. Uncertainty exists about how to modernize the grid and what technologies and fuels will be used to produce electricity in the future. Unresolved questions about transmission and reliability of the grid are arising due to potential cybersecurity threats and continuing interest in renewable energy and other low carbon sources of electricity.

Concerns about reliability and electricity prices are complicated by environmental regulations, the intermittent nature of wind and solar power, and the rising availability of natural gas for electric power production. Renewables production and consumption have increased since 2000. As a source of total primary energy, renewable energy increased 80% between 2000 and 2017. Unlike some other energy commodities (e.g., crude oil), renewable energy is available in a variety of distinct forms that use different conversion technologies to produce usable energy products (e.g., electricity, heat, and liquid fuels). Therefore, it is important to distinguish between renewable fuel sources and uses. The United States has the largest coal resources in the world. Coal is used primarily for electricity generation. Although its prices have stayed low, coal has faced increasing competition from natural gas and renewables. U.S. coal consumption peaked in 2007 and has since declined by 39%. Coal currently supplies approximately 30% of electricity generation. Nuclear-generated electricity output has stayed flat during the same time period, and faces significant challenges as a future source of electric power generation.